All plants, even auto flowering cannabis plants, need sleep, running your lights at 24/0 will lead to plants that live with an incomplete photosynthesis cycle, as plants need darkness to undertake certain vital metabolic processes that they can not do when the lights are on.
Plants grown with an incomplete photosynthesis cycle will suffer health problems and will not be able to produce prime and balanced trichomes.
Google "photosynthesis" and find out for yourself if you are sceptical.
Cheers, Organoman.